910e62b5创建于 1月15日历史提交
// Copyright 2011 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ui/views/examples/radio_button_example.h"

#include <stddef.h>

#include <memory>

#include "base/strings/strcat.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/views/controls/button/label_button.h"
#include "ui/views/controls/button/radio_button.h"
#include "ui/views/examples/examples_window.h"
#include "ui/views/examples/grit/views_examples_resources.h"
#include "ui/views/layout/box_layout.h"
#include "ui/views/view.h"

using l10n_util::GetStringUTF16;
using l10n_util::GetStringUTF8;

namespace views::examples {

namespace {

const char* BoolToOnOff(bool value) {
  return value ? "on" : "off";
}

}  // namespace

RadioButtonExample::RadioButtonExample()
    : ExampleBase(GetStringUTF8(IDS_RADIO_BUTTON_SELECT_LABEL).c_str()) {}

RadioButtonExample::~RadioButtonExample() = default;

void RadioButtonExample::CreateExampleView(View* container) {
  container->SetLayoutManager(
      std::make_unique<views::BoxLayout>(BoxLayout::Orientation::kVertical));

  const int group = 1;
  for (size_t i = 0; i < 3; ++i) {
    radio_buttons_.push_back(
        container->AddChildView(std::make_unique<RadioButton>(
            base::UTF8ToUTF16(base::StringPrintf(
                "Radio %d in group %d", static_cast<int>(i) + 1, group)),
            group)));
  }

  container->AddChildView(std::make_unique<LabelButton>(
      base::BindRepeating(&RadioButton::SetChecked,
                          base::Unretained(radio_buttons_[2]), true),
      GetStringUTF16(IDS_RADIO_BUTTON_SELECT_BUTTON_LABEL)));
  container->AddChildView(std::make_unique<LabelButton>(
      base::BindRepeating(&RadioButtonExample::StatusButtonPressed,
                          base::Unretained(this)),
      GetStringUTF16(IDS_RADIO_BUTTON_STATUS_LABEL)));
}

void RadioButtonExample::StatusButtonPressed() {
  // Show the state of radio buttons.
  PrintStatus(
      base::StrCat({"Group: 1:", BoolToOnOff(radio_buttons_[0]->GetChecked()),
                    ", 2:", BoolToOnOff(radio_buttons_[1]->GetChecked()),
                    ", 3:", BoolToOnOff(radio_buttons_[2]->GetChecked())}));
}

}  // namespace views::examples